Miner&#39;s squib.



No. 693,964. Patented Feb. 25, I902.

F. H. G. E. GROSS.

MINEBS SflUIB.

(Appliction filed on. 4, 1901.,

(No Model.)

UNITED STATES FREDERICK n. (moss AND ELWOOD GROSS, or PLYMOUTH, PENNSYLVANIA.

,Mmsws souls.

- SPECIFIGATIQN formingpert of Letters Patent No. 693,964, dated February 25, 1902.

Application filed October 4, 1901 Serial No. 77,594. (No model.)

To all whom it may concern:

Be it known that we, FREDERICK H. Gnoss' and Enwoon Gnoss, citizens of the United States, residing at Plymouth, in the county of Luzerne and State of Pennsylvania, have invented anew and useful Miners Squib, of

which the following is a. specification.

This invention relates to miner's squios.

The object is to present a squib the construction of which will render it absolutely safe in use and which will be thoroughly re-' liable and certain of operation; furthermore, to -.pre'sent a. squib having a novel form of closure for the end of the tube, whereby in the event of inclusion of grains oi powder in the match the explosion of the same willnot operate to set off the squib, thereby obviating the necessity oi the miner having to untwist the inatch -to ascertain if there be any powder included therewith.

With these and other objects in view, as will appear as theigature of the invention is better understood, the same consisfsjn the novel construction and cbmbination of parts of a miners squib, as will behereinafter fully described and claimed.

In the accompanying drawings, fbrm ng a" part of this specification, and'in which like numeralsof referenceindicatecorresponding" parts, there, is illustratedoneform oiZ embodiment of the invention capable of carrying the same into practical operation,-it being understood that the elements therein exhibited may bevaried'or changed asto shape,- proportion, and exact manner of assemblage without departing from the scope of the iriexhibiting the first step' preparing the blank for formation into a tube; Fig. 3 is a similar view showing the second step. Fig. 4 is a v similar view showing thenthird step. Fig. 5 45 is. a similar view showin g the fourth step. Fig. 6 is a perspective view nhibiting the finished squihQ-blank with the eedleand man;

drel-still in position thereimfri,

Referring to the drawings, 1 designates gen-. "erally the squib-blank, comprising a body portion 2, a closing-flap 3, andgt'match 4.

these latter-tongues. bein All of these parts are integral, and the time,

is to be made, preferably, of paper.

The body-2 of the blank, in this instance two parts by an incision 8, an incision 9, terminatingapproxi mately in line with the shoulder 10 of the flap 5, serving to make the two match members of approximately the same length. The closing-flap 3 is produced by an approximately rectangular extension of the body, which by a plurality of incisions 11. produce fingers '12, that by being pasted together and rolled inward over the needle or mandrel 13 presenta closure for the forward end oi the tube. The form of closing-flap herein shown-has been found effectiye'in use and will generally-be adopted; but'it istb be understood that the inventi'onis not to be limited to the exact shape thereof herein shown, as-it will lie-obvious that the same may be otherwis. contoured, if found necessary or desirable, and stillrbewithin the scope of the invention, Theincisinns 11, that produoethe fingers 12, are herein 'sh'o'wn as-radiaLly disposed, this disposition-beihg employed' on ao'oount of the shape of the closingflap; but should the said flap be square the incisions'will then be disposed approximately parallel with the side of the body of the blank on which the flap is' located.

' In the formation of the squib-tube of the closing-flap is folded down and pasted to the body of the tube, as shownat 14, thereby presenting two tongues 15 .formed by the outer portion oi the blank-body and theinue} portion thereofadjacent' to one of the tongues. The needle or mandrel-is then laidupon the blank, as'shown in Fig. 3, with the end eon= tiguous to the baseof the flapfiyand theside of the blank adjaientto the flap is'thnrolled" around themandrel, as shown inF'ig. 4, the tongues In prpjectin'gfoutward and being aggro'uped with the tonguesof the olesingfiap,

V4 v Qt-hen securelyiassembled b'y-some adhesivepmaterialto elfeet the base I l closingof the outer end ol' the squib-tube, and the rolling isthen continued until the entire body of the blank is rolled around the mandrel, a layer of adhesive material (indicated by 16) on the lip 5 serving to hold the blank in its rolled disposition. \Vhen the squibt'ube is thus formed and prior to the twisting of the match members, as shown in Fig. (i, the outerend of the tube will, before stated, be closed by the fingers forming the closing-flap and by the two tongues 15, these all being secured together by some suitable adhesive material, so as to present a multi-ply structure at the eud'of the tube, which will be thoroughly effective to prevent explosion of the squib should powder explode thereon. The match members are finally twisted together, as shown in Fig. 6, and maybe treated with any suitable substance to render them cer ain of ignition and burning. The mandrel is now removed and the squib-tube tilled with powder in the usual manner and sealed. it will be obs rved that where the match members merge into the squib-body there is only a single thickness of paper, so that all danger of the match failing to ignite the squib will be prevented. Moreover, as the tongues divergelrom the twisted portion there aroin reality two matches presented, which will double the cliainxe of the squib being properly ignited.

It will be seen from the foregoing description tlmt by the manner of sealing the end olf the squibtub all danger of the squib being, prematurely exploded, as by grains of powder boiugcxploded thereon, will be effectively 0 rinted, so that a miner need feel no apprehension of danger in using the same and will be indifferent whether powder is included Within the match or not. Further, by the provision of two matches certainty of ignition of the squib will be insured.

Having thus fully described our invention, what we claim as new, and desire to secure by Letters Patent, is-- 1. A miner-s squib having its match ends sealed by a closure composed of a plurality of fingers assembled by a suitable adhesive material. 7

2. A miner-s squib having, two match members disposed on opposite sides of the squibtube and separated at their point of juncture therewith, and a closure for sealing the match end of the tube, comprising a plurality of fingers permanently assembled bya suitable adhesive material.

3. As a new article of manufacture, a blank for miners squibs, comprising a body portion carrying at one end two tongues to constitute the match members, and a plurality of fingers adjacent to thebase of the tongues to be assembled to constitute a closing-fiap.

in testimony that we claim the foregoing as our own we have hereto affixed oursignaturcs in the presence of two witnesses.

FREDERICK ll. GROSS. ELNOOD G 1085.

\Vitnesses:

FRANK l 'LAv'roN, DAvio JENKlN. 

